458 INDEX 



Senses, 183 f., 190, 194 f., 202 f. ; of 

 cave fishes, 234 



Sensory nerves, 181 



Serpent Eel, colours, 223 



Serranidac, 378; sec also Sea 

 Perch 



Serrasalmus, see Caribe 



Sewage, effects of, 413 



Sewen, 366, 370 



Sexual differences, 223, 294 f. 



Shad, gill-rakers, 39, 42; scales, 91; 

 eggs, 282, 322 



Shagreen, 85, 401 



Shape, of body, 9 f. 



Shark, gills, 34 f., 36; dorsal and 

 anal fins, 63 ; caudal fin, 74; 

 pectoral fin, 75 ; dermal denticles, 

 85; leather from skin, 86, 401; 

 lateral line, 100; mouth, 104 f. ; 

 teeth, 105, 120 f. ; feeding, 105, 

 125; attacking man, 125; intestine, 

 170; spiral valve, 170 f. ; brain, 

 178; sense of smell, 184; pineal 

 gland, 190; in fresh water, 253; 

 claspers, 294 f. ; eggs, 318 f. ; fossil 

 forms, 350 f.; classification, 350 f., 



373 f- 

 Shark-fins, as food, 400 

 Shark-flesh paste, 400 

 Shark-sucker, habits, 70; colours, 



227; see also Remora 

 Sheat-fish, see Wels 

 Shiner, nest, 304 

 Ship-holder, myth, 427 

 Shoaling, 204 

 Shoulder girdle, 58 

 Shrimp-fish, 30, 95; swimming 



position, 30; fins, 67; cuirass, 96 f. ; 



systematic position, 378 

 Siganid, passing Suez Canal, 



258 

 Siganus, see Siganid 

 Siluroid, dorsal fin, 66 

 Siluroidea, 377; see also Cat-fish 

 Silurus, see Wels 

 Silver Eel, 289 f., 338 

 Silver Salmon, 286 

 Singing-fish, 152 

 Sinus, 172 



Siphostoma, see Florida Pipe-fish 

 Sisoridae, 239 

 Size, 424 f. ; of brain, 179; of eye, 



188 f.; of eggs, 322 



Skate, respiration, 41 ; electric organ, 



147; systematic position, 376; see 



also Ray 

 Skate barrow, 320 

 Skeleton, 159 f. ; of oceanic fishes, 



230 

 Skin, 84; respiration with, 45; sense 



organs of, 196; as leather, 401 

 Skipper, 113; leaping, 78; green 



bones, 166; eggs, 323 

 Skull, 159 f. 

 Slat, see Kelt 

 Sleep, 204 f. 



Sleeper Shark, see Greenland Shark 

 Slender File-fish, mimicry, 217, 218 

 Smack, 389 



Small Spring Salmon, 285 

 Smaller Devil-fish, feeding, 105 

 Smallest fish, 425 f. 

 Smell, 183 f. 

 Smelt, eggs, 323; systematic position, 



377 

 Smokmg, 397 f. 

 Smolt, 102, 329 

 Smooth - head, phosphorescence, 



149; systematic position, 377 

 Smooth Hound, placenta, 325 f. 

 Snake-head, 48; respiration, 47 f. ; 



aestivation, 244 

 Snapper, 378 

 Snipe Eel, 73; form of body, 18; 



jaws, 113 

 Snipe-fish, scales, 96; systematic 



position, 378 

 Snorter, 157 

 Snurrvaad, 393 

 Soft-rays, 58, 63 

 Soft roe, 279 



Soldier-fish, fins, 69; scale, 89 

 Sole, fins, 68; sensory papillae, 93; 



mouth, feeding, 118; palatability, 



167; nocturnal activity, 205; 



mimicry, 224; spawning, 281; 



number of eggs, 283; systematic 



position, 369, 379 

 Solea^ see Sole 

 Soleidae, 379 



Solenichthyes, 378; see Tube-mouth 

 Solenostomidae, egg-pouch, 314 

 Soleoidea, 379 



Somniosus, see Greenland Shark 

 Sordid Dragonet, 302 

 Sound (air-bladder), 401 



